EP 3467825 B1 20200122 - PYRAMID VECTOR QUANTIZER SHAPE SEARCH
Title (en)
PYRAMID VECTOR QUANTIZER SHAPE SEARCH
Title (de)
FORMSUCHE FÜR PYRAMIDEN VEKTORQUANTISIERER
Title (fr)
RECHERCHE DE FORME D'UN QUANTIFICATEUR VECTORIEL PYRAMIDAL
Publication
Application
Priority
- US 201462029586 P 20140728
- EP 16165702 A 20150625
- EP 15733942 A 20150625
- SE 2015050743 W 20150625
Abstract (en)
[origin: WO2016018185A1] An encoder and a method therein for Pyramid Vector Quantizer, PVQ, shape search, the PVQ taking a target vector x as input and deriving a vector y by iteratively adding unit pulses in an inner dimension search loop. The method comprises, before entering a next inner dimension search loop for unit pulse addition, determining, based on the maximum pulse amplitude, maxamp y , of a current vector y, whether more than a current bit word length is needed to represent enloop y , in a lossless manner in the upcoming inner dimension loop. The variable enloop y is related to an accumulated energy of the vector y. The performing of this method enables the encoder to keep the complexity of the search at a reasonable level. For example, it enables the encoder to apply an increased precision loop only when it may be needed, by analyzing whether the "worst case scenario" in the upcoming inner loop would require an inner loop with a higher precision than the one currently used.
IPC 8 full level
G10L 19/038 (2013.01); H03M 7/30 (2006.01)
CPC (source: CN EP KR RU US)
G10L 19/0017 (2013.01 - EP RU US); G10L 19/038 (2013.01 - CN EP KR RU US); H03M 7/3082 (2013.01 - EP KR RU US); G10L 19/00 (2013.01 - US); G10L 19/002 (2013.01 - US); G10L 19/032 (2013.01 - US); G10L 19/10 (2013.01 - US); G10L 19/167 (2013.01 - US); G10L 2019/0013 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016018185 A1 20160204; AR 101332 A1 20161214; AU 2015297066 A1 20161215; AU 2015297066 B2 20170907; AU 2017265085 A1 20171214; AU 2017265085 B2 20190711; AU 2019204328 A1 20190711; AU 2019204328 B2 20200528; CA 2955765 A1 20160204; CA 2955765 C 20180213; CN 105431901 A 20160323; CN 105431901 B 20190319; CN 109979470 A 20190705; CN 109979470 B 20230620; DK 2992529 T3 20160829; DK 3065135 T3 20190325; EP 2992529 A1 20160309; EP 2992529 B1 20160525; EP 3065135 A1 20160907; EP 3065135 B1 20181226; EP 3467825 A1 20190410; EP 3467825 B1 20200122; EP 3633675 A1 20200408; EP 3633675 B1 20210428; ES 2586712 T3 20161018; ES 2718049 T3 20190627; ES 2785041 T3 20201005; ES 2874511 T3 20211105; HU E028802 T2 20170130; HU E042095 T2 20190628; IL 249104 A0 20161229; IL 249104 A 20171130; JP 2016527527 A 20160908; JP 2017216696 A 20171207; JP 2018156099 A 20181004; JP 2020010353 A 20200116; JP 6170575 B2 20170726; JP 6347872 B2 20180627; JP 6574287 B2 20190911; JP 6644939 B2 20200212; KR 101777994 B1 20170913; KR 101959156 B1 20190315; KR 102034419 B1 20191018; KR 20170020540 A 20170222; KR 20170102047 A 20170906; KR 20190027959 A 20190315; MX 2016016095 A 20170310; MX 2018006677 A 20210629; MX 2021007880 A 20221206; MX 357398 B 20180706; MY 177842 A 20200923; NZ 726879 A 20171027; PL 2992529 T3 20170331; PL 3467825 T3 20200810; PL 3633675 T3 20211115; PT 2992529 T 20160818; PT 3633675 T 20210601; RU 2017106160 A 20180828; RU 2017106160 A3 20180828; RU 2018128976 A 20190314; RU 2018128976 A3 20211020; RU 2665898 C2 20180904; RU 2762329 C2 20211217; SG 10201704724T A 20170728; SG 10202000575W A 20200330; SG 11201609926Y A 20161229; TR 201901612 T4 20190221; US 11942102 B2 20240326; US 2016027449 A1 20160128; US 2017301359 A1 20171019; US 2023086320 A1 20230323; US 9792922 B2 20171017; ZA 201802791 B 20190731; ZA 201902319 B 20200826
DOCDB simple family (application)
SE 2015050743 W 20150625; AR P150102382 A 20150727; AU 2015297066 A 20150625; AU 2017265085 A 20171123; AU 2019204328 A 20190620; CA 2955765 A 20150625; CN 201580001475 A 20150625; CN 201910135157 A 20150625; DK 15733942 T 20150625; DK 16165702 T 20150625; EP 15733942 A 20150625; EP 16165702 A 20150625; EP 18206322 A 20150625; EP 19209199 A 20150625; ES 15733942 T 20150625; ES 16165702 T 20150625; ES 18206322 T 20150625; ES 19209199 T 20150625; HU E15733942 A 20150625; HU E16165702 A 20150625; IL 24910416 A 20161121; JP 2015563093 A 20150625; JP 2017129472 A 20170630; JP 2018102606 A 20180529; JP 2019149150 A 20190815; KR 20177003688 A 20150625; KR 20177023847 A 20150625; KR 20197006859 A 20150625; MX 2016016095 A 20150625; MX 2018006677 A 20150625; MX 2021007880 A 20150625; MY PI2017700255 A 20150625; NZ 72687915 A 20150625; PL 15733942 T 20150625; PL 18206322 T 20150625; PL 19209199 T 20150625; PT 15733942 T 20150625; PT 19209199 T 20150625; RU 2017106160 A 20150625; RU 2018128976 A 20150625; SG 10201704724T A 20150625; SG 10202000575W A 20150625; SG 11201609926Y A 20150625; TR 201901612 T 20150625; US 201514759864 A 20150625; US 201715641632 A 20170705; US 202217930141 A 20220907; ZA 201802791 A 20180426; ZA 201902319 A 20190412